A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 4140-00-103-2449
NSN 5999-00-180-2808
NSN 5985-00-684-6847
NSN 4140-01-406-3626
NSN 6320-01-428-9205
NSN 5935-01-327-1860
NSN 6240-00-497-8612
NSN 5975-00-679-6738
NSN 5950-01-362-5196
NSN 6145-00-655-2738
NSN 6650-01-048-6757
NSN 6130-00-196-5292